<!DOCTYPE html>
<html lang="en">
    <!-- head表示网页的头部 -->
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 网页的标题 -->
    <title>网页HTML</title>
    <link rel="stylesheet" href="../css/style.css">
</head>
<body>
    <div>这是一个div</div>
</body>
</html>